Even a split second delay between a shot and a chaser can be painful for the drinker, but thanks to a new glass innovation there doesn't have to be a lag time at all. According to Foodbeast, a company called Quaffer makes dual shot glasses, which conveniently hold the beverage of your choice underneath a shot of the alcohol of your choice. Just make sure to pour the heavier liquid first, and in some cases a bar spoon may be used to keep the liquids separate when pouring. Four plastic dual shot glasses are $10 onAmazon.